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Details of Allt Dderw

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Allt DderwNo. 15496
Height:142.0m / 466ft
Prominence/Drop:30.0m / 98ft
Country:Wales
County:Cardiganshire [Ceredigion] (CoU)
Grid Ref:SN 63835 83207
Latitude:52.420000
Longitude:-4.000000
Hill Area(s):31A: Aberystwyth to Welshpool
Classification:1, Tu
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More Details for Allt Dderw
Parent Hill:Disgwylfa Fawr
Summit feature:no feature: level pasture
Col:112.0m / 367ft (Grid ref: SN643831)
Map:OS Landranger: 135
OS Explorer: 213
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Height Purple icon for hills greater than or equal to 1200m high≥1200m
Red icon for hills between 1100m & 1200m high≥1100m
Orange icon for hills between 1000m & 1100m high≥1000m
Yellow icon for hills between 900m & 1000m high≥900m
Dark green icon for hills between 800m & 900m high≥800m
Green icon for hills between 700m & 800m high≥700m
Indigo icon for hills between 600m & 700m high≥600m
Violet icon for hills between 500m & 600m high≥500m
Dark violet icon for hills less than 500m high<500m
Prominence Icon for hills greater than or equal to 600m prominence (The definition of a P600 or 'major').≥600m
Icon for hills greater than or equal to 150m prominence (The definition of a Marilyn)≥150m
Icon for hills greater than or equal to 100m prominence (The definition of a Hump)≥100m
Icon for hills greater than or equal to 30m prominence (Definition for several hills, primarily Tumps)≥30m
Icon for hills less than 30m prominence<30m More
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